Malicious PDF — malware analysis report

Static analysis result for SHA-256 7d6fe5b1f64d64bb…

MALICIOUS

PDF

36.1 KB Created: 2020-08-12 08:12:04 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: e98db0e4d75c82f1ca2c30e2e323038c SHA-1: d584081f0cfb70f1c901d92e3d4438f0c5834ac7 SHA-256: 7d6fe5b1f64d64bb4222002dcbf21a179884ab5b2bd4dd2af5062ecbb9083bb6
142 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell T1204.002 Malicious Link

The PDF contains a link that redirects to known malicious infrastructure, disguised as a boiler installation manual. The heuristic firings indicate a malicious redirector link and a link farm, suggesting a phishing or scam attempt. The document body also contains text consistent with a callback phishing lure, further supporting the malicious intent.

Heuristics 4

  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • Callback phishing phone lure medium SE_CALLBACK_LURE
    Document asks the user to call a phone number in billing, refund, subscription, fraud, or security context — consistent with callback phishing or tech-support scam patterns
  • Embedded URL info EMBEDDED_URL
    One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
    URL https://ttraff.com/wb?keyword=baxi%20105%20he%20combi%20boiler%20installation%20manual
    • http://files.newtonarboretum.com/uploads/1/3/1/4/131453245/8735985.pdf
    • http://files.marthaproject.com/uploads/1/3/0/7/130776619/remipapokuruzaxexo.pdf
    • http://files.hillcrestpps.org/uploads/1/3/2/6/132681501/3102471.pdf
    • https://cdn.shopify.com/s/files/1/0431/7285/5957/files/ansiedad_mexico.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/tizerosotusalasebix.pdf
    • https://cdn.shopify.com/s/files/1/0430/6547/5226/files/spinal_anesthesia_for_c_section.pdf
    • https://cdn.shopify.com/s/files/1/0437/8561/7570/files/toefl_sample_test_2020.pdf
    • https://cdn.shopify.com/s/files/1/0429/6808/8742/files/21604087538.pdf
    • https://cdn.shopify.com/s/files/1/0438/9994/5112/files/cambridge_checkpoint_science_revision_guide.pdf
    • https://cdn.shopify.com/s/files/1/0431/4375/7985/files/85045827490.pdf
    • https://cdn.shopify.com/s/files/1/0428/3210/1543/files/55554334477.pdf
    • https://cdn.shopify.com/s/files/1/0430/6416/4506/files/wevobepofejuferogopojive.pdf
    • https://cdn.shopify.com/s/files/1/0430/2045/1997/files/25974065350.pdf
    • https://cdn.shopify.com/s/files/1/0430/8454/6209/files/excellence_in_business_communication.pdf
    • https://cdn.shopify.com/s/files/1/0432/9144/3364/files/86705744130.pdf
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#
    • http://purl.org/dc/elements/1.1/
    • http://ns.adobe.com/pdf/1.3/
    • http://ns.adobe.com/xap/1.0/
    • http://ns.adobe.com/xap/1.0/mm/
    • http://ns.adobe.com/xap/1.0/rights/

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000434c.bin
8f192ecd29db56ae0659fa44e2408d9da26e142e713c1a14e49593894857f6d2
pdf-font-stream PDF embedded font (sfnt) at offset 0x434C 5496 bytes
font_01_sfnt_off000055d3.bin
17ee96c8ee13651df6d444e3fc3b857211863f6b647aac6eefec3136e4f92689
pdf-font-stream PDF embedded font (sfnt) at offset 0x55D3 9284 bytes
font_02_sfnt_off00007581.bin
781b9fae2fb9201b4a05d2041fea553bb2973f1d011ab9c51e3326c72e342c60
pdf-font-stream PDF embedded font (sfnt) at offset 0x7581 4324 bytes